The Chemistry, Properties and Tests of Precious Stones
Mastin, John, 1865-
The Chemistry, Properties and Tests of Precious Stones [electronic resource] / John Mastin - Project Gutenberg, 2007 - Project Gutenberg 23626 .
Public domain in the USA.
Electronic text
Precious stones
QE
The Chemistry, Properties and Tests of Precious Stones [electronic resource] / John Mastin - Project Gutenberg, 2007 - Project Gutenberg 23626 .
Public domain in the USA.
Electronic text
Precious stones
QE